.SDF file extension

This is the basic program to work with .SDF extension

Proteus combines ease-of-use with powerful features to help you design, test and layout professional PCBs.
Main features:
- 800 microcontroller variants ready for simulation straight from the schematic.
- The Advanced Simulation Features product adds graph based analyses to your Proteus circuit simulation... (more)

The program works with the following extensions: rgn, dsn, lyt and sdf